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EP 4 301 377 A1

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(43) Date of publication: 10.01.2024 Bulletin 2024/02 (21) Application number: 21929368.5 (22) Date of filing: 01.03.2021

(51) International Patent Classification (IPC):  A61K 31/785(2006.01) A61P 13/12(2006.01) A61K 31/74(2006.01) C08F 226/04(2006.01) (52) Cooperative Patent Classification (CPC): A61P 13/12; C08F 226/02   C-Sets: C08F 226/02, C08F 226/02; (86) International application number: PCT/US2021/020265 (87) International publication number: WO 2022/186813 (09.09.2022 Gazette 2022/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: Tricida Inc. South San Francisco, CA 94080 (US)

(72) Inventors: KLAERNER, Gerrit San Francisco, California 94080 (US) CONNOR, Eric F. San Francisco, California 94080 (US) GBUR, Randi K. San Francisco, California 94080 (US) KADE, Matthew J. San Francisco, California 94080 (US) KIERSTEAD, Paul H. San Francisco, California 94080 (US) BIYANI, Kalpesh N. San Francisco, California 94080 (US) NGUYEN, Son H. San Francisco, California 94080 (US) TABAKMAN, Scott M. San Francisco, California 94080 (US) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)